Herrmann studied composition with Ulrich Leyendecker and musicology with Hermann Jung at the Hochschule für Musik und Darstellende Kunst Mannheim.
During his studies, he received further influence from composers like Hermann Schäfer, Krzysztof Meyer, Detlev Glanert, Roberto Doati and Wladimir Sagorzew.
His rediscovery of the lost song of joy Per la ricuperata salute di Ofelia K. 477a by Salieri, Mozart and Cornetti in late 2015 brought him world-wide attention.
The Theater Heidelberg premiered several of his stage works, among them the chamber opera Unreine Tragödien und aussätzige Dramatiker and his contributions to the project Das neue Wunderhorn conducted by Cornelius Meister.
Herrmann's chamber opera on Shakespeare's Hamlet, commissioned by the Opernhaus Dortmund, was premiered in February 2017 and performed with considerable success.